Fair Value Additional (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Value of Financial Instruments
Term Loan B, Carrying Value		$ 424,145	$ 400,068
Senior Loans | Libbey Glass
Value of Financial Instruments
Term Loan B, Carrying Value	[1]	379,100	380,200
Level 2 | Senior Loans | Libbey Glass
Value of Financial Instruments
Term Loan B, Fair Value		$ 354,459	$ 362,141

[1] We have entered into interest rate swaps that effectively fix a series of our future interest payments on a portion of the Term Loan B debt. See interest rate swaps in note 8 for additional details. The Term Loan B floating interest rate was 5.49 percent at March 31, 2019.